Fact or Opinion?
Common Sense or Nonsense?
Explanation or Excuse?
Open-minded or Empty-headed?

Just as some foods that taste good might have little
nutritional value, or could even be harmful, ideas sometimes seem emotionally
satisfying but have little basis in fact or logic. Such ideas could be harmful
if they keep you from exploring alternatives. Be at least as careful about what goes into your mind as you are about
what goes into your stomach.

Professor Tangent can help you decide with skeptical
inquiry, brainteasers, games, logic, common sense, humor and curriculum
suggestions for educators, homeschoolers and students of all ages. Quality
thinking protects you from being deceived by others, and prevents you from
deceiving yourself.